package exception;

import java.awt.*;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.SQLException;

public class ThrowsDemo {
    public void doSome()throws IOException, AWTException{}
}
class SubClass extends ThrowsDemo{
    //public void doSome()throws IOException,AWTException{}
    //允许不再抛出任何异常
    //public void doSome(){}
    //允许仅抛出部分异常
    //public void doSome()throws IOException{}
    //允许抛出超类方法抛出异常的子类型异常
    //public void doSome()throws FileNotFoundException {}

    //不允许抛出额外异常(超类没有抛出的且也不存在继承关系的异常)
    //public void doSome()throws SQLException{}
    //不允许抛出超类方法抛出异常的超类型异常
    //public void doSome()throws Exception{}

}